Eco - City: Sweden

Waste management Biogas

Eco – City: A case study of Sweden Esther Maganga & Jianyu Lin (Ivy)

Eco – City

Ø Emphasis on renewable resources Ø Minimized resource consumpHon Ø Recovery and reuse

Eco -­‐ Cycle Model

Ø Synergies between sewage, waste and energy producHon

Ø Efficient land use, landscape planning and transport system

Waste Management Ø More than 99% of household wastes in Sweden is recycled in one form or another Ø Sweden has run out of rubbish for Waste – to – Energy recovery industry Ø Import waste from other European countries to use in power plants (e.g Norway)

100 90

Recycling (material)

80 70

Biological treatment

60

Energy recovery

50 40

Landfill

30 20 10 0 Sweden 2010

EU 2010

USA 2010

Example of ‘Take back / Reverse Vending System’

What is Biogas?

Biogas is a renewable energy that is made from organic waste. In addiHon, Biogas is in demand by industry, both as a fuel and as a raw material in different manufacturing processes.

Development of Biogas in Sweden 1960’s: Produced at municipal wastewater treatment plant to reduce sludge volume

1970’s: Research and development into biogas due to oil crisis. ConstrucHon of new plants

in order to reduce environmental problems and dependency on oil

1980’s: Several landfill plants collected and uHlized biogas produced in their treatment

areas

1990’s Hll date: Several new plants have been constructed to treat organic waste (food &

animal waste) and to reduce the local, regional and global emissions

from the transport system

What is biogas used for? Ø The energy in biogas can be used for local heaHng and to generate electricity, which increases the proporHon of ‘green electricity’ Ø In Sweden Biogas is also used as vehicle fuel to run buses, cars and trains

What is biogas used for? Ø 100% Biogas for urban transport in Linköping, Sweden Ø The world’s first Biogas train headed down the track between Linköping and Vastervik on the east coast of Sweden Ø Biogas provides endless possibility's of how we can turn waste into a raw material

The world’s first Biogas train at the staHon in Linköping, Sweden

Public biogas refuelling staHon in Linköping, Sweden

References

hgp://sweden.se/nature/sustainable-­‐living/ hgp://www.pri.org/stories/2012-­‐06-­‐26/sweden-­‐imports-­‐waste-­‐european-­‐ neighbors-­‐fuel-­‐waste-­‐energy-­‐program hgp://sweden.se/nature/99-­‐recycling-­‐thats-­‐the-­‐swedish-­‐way/ hgp://www.trueacHvist.com/sweden-­‐runs-­‐out-­‐of-­‐garbage/ hgp://www.returpack.hu/en/ hgp://www.biogasportalen.se/